Pastable version of lengthy if statement. (Ruby on Rails)

<pre class='prettyprint' language='ruby'>def setup_search
    @timetable = Timetable.find( :first,
      :conditions =&gt; [ 'day = ? AND status = &quot;active&quot;', params[:id] ]
    )

if @timetable
      if params[:age_group] == 'adult'
        if params[:timetable_type] == 'term'
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [
              &quot;category = ? AND timetable_type = ?&quot;,
              'Adult Members',
              'term' ],
            :order =&gt; 'start_time'
          )
        elsif params[:timetable_type] == 'holiday'
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [
              &quot;category = ? AND timetable_type = ?&quot;,
              'Adult Members',
              'holiday' ],
            :order =&gt; 'start_time'
          )
        else
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [ &quot;category = ?&quot;,
              'Adult Members' ],
            :order =&gt; 'start_time'
          )
        end
      elsif params[:age_group] == 'junior'
        if params[:timetable_type] == 'term'
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [ &quot;category = ? AND timetable_type = ?&quot;,
              'Young Members',
              'term' ],
            :order =&gt; 'start_time'
          )
        elsif params[:timetable_type] == 'holiday'
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [ &quot;category = ? AND timetable_type = ?&quot;,
              'Young Members',
              'holiday' ],
            :order =&gt; 'start_time'
          )
        else
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [ &quot;category = ?&quot;,
              'Young Members' ],
            :order =&gt; 'start_time'
          )
        end
      else
        if params[:timetable_type] == 'term'
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [ &quot;timetable_type = ?&quot;,
              'term' ],
            :order =&gt; 'start_time'
          )
        elsif params[:timetable_type] == 'holiday'
          @activities = @timetable.activities.find( :all,
            :conditions =&gt; [ &quot;timetable_type = ?&quot;,
              'holiday' ],
            :order =&gt; 'start_time'
          )
        else
          @activities = @timetable.activities.find( :all,
            :order =&gt; 'start_time'
          )
        end
      end
    end
  end</pre>
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Pastable version of lengthy if statement. (Ruby on Rails)